AU2014301912B2 - High-power LED lamp cooling device and manufacturing method therefor - Google Patents

High-power LED lamp cooling device and manufacturing method therefor Download PDF

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Publication number
AU2014301912B2
AU2014301912B2 AU2014301912A AU2014301912A AU2014301912B2 AU 2014301912 B2 AU2014301912 B2 AU 2014301912B2 AU 2014301912 A AU2014301912 A AU 2014301912A AU 2014301912 A AU2014301912 A AU 2014301912A AU 2014301912 B2 AU2014301912 B2 AU 2014301912B2
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type semiconductor
semiconductor elements
led lamp
semiconductor element
power led
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AU2014301912A1 (en
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Zhiming Chen
Wei Gu
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SUZHOU WEIYUAN NEW MATERIAL TECHNOLOGY Co Ltd
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SUZHOU WEIYUAN NEW MATERIAL TECHNOLOGY CO Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/64Heat extraction or cooling elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/51Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/51Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • F21V29/52Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes electrically powered, e.g. refrigeration systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/54Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • H01L23/3737Organic materials with or without a thermoconductive filler
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008Processes
    • H01L2933/0033Processes relating to semiconductor body packages
    • H01L2933/0075Processes relating to semiconductor body packages relating to heat extraction or cooling elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/64Heat extraction or cooling elements
    • H01L33/645Heat extraction or cooling elements the elements being electrically controlled, e.g. Peltier elements
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/13Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction

Abstract

Disclosed are a high-power LED lamp cooling device and a manufacturing method therefor. The method comprises: manufacturing a semiconductor crystal bar used for manufacturing N-type semiconductor elements or P-type semiconductor elements in advance into a cone-shaped crystal bar of which one end has a large diameter and the other end has a small diameter, and then making a colour mark on each wafer as the large-diameter end surface of the tail end when the cone-shaped semiconductor crystal bar is cut into slices; and cutting and pelletizing the conical surface of each wafer to obtain polygonal cylindrical N-type semiconductor elements or P-type semiconductor elements, arranging the N-type semiconductor elements and the P-type semiconductor elements in a matrix form between two beryllium-oxide ceramic chips which are provided with conductive circuits, and connecting the head end of each column of N-type semiconductor elements to the tail end of the P-type semiconductor elements in series mutually, so as to manufacture a high-power LED lamp cooling device. The high-power LED lamp cooling device can realize the technical effects of having a good cooling effect, high work efficiency and low energy consumption and being capable of reducing the light failure of an LED lamp, and prolonging the service life of the high-power LED lamp.

Description

HIGH-POWER LED LAMP COOLING DEVICE AND METHOD FOR MANUFACTURING THE SAME
TECHNICAL FIELD
[0001] The present invention relates to a high-power LED lamp cooling device and a method for manufacturing the same, which belongs to the field of heat-dissipating and cooling technology for a high-power LED lamp.
BACKGROUND
[0002] The light-emitting efficiency of an LED lamp not only depends on quality of LED lamp bulb, but more importantly also depends on the temperature of the LED lamp during operation, especially when a high-power LED lamp is in operation, once the temperature is above 55°C, the light-emitting efficiency thereof reduces by about 2% for each degree increase in temperature, and therefore, cooling treatment is very important when an LED lamp, especially a high-power LED lamp is in operation. In the prior art, the high-power LED lamp is usually cooled by air cooling or with a semiconductor cooling device. The feature, that different temperatures are generated at a hot end and a cold end of a P-type semiconductor element and an N-type semiconductor element while being energized, has been widely applied in the field of manufacturing a semiconductor cooling or heating device. Currently, when the N-type or P-type semiconductor elements are used to manufacture a cooling device, directions of the N-type or P-type semiconductor elements are always not taken into account, that is, when the N-type or P-type semiconductor elements are connected, the head end and the tail end of the N-type or P-type semiconductor elements are not distinguished, but arbitrary ends of the N-type or P-type semiconductor elements are connected mutually, such a mode of connection irrespective of the head end and the tail end not only reduces working efficiency of the semiconductor element, increases energy consumption, but also makes the manufactured cooling device fail to reach a required cooling temperature. Generally speaking, in terms of the cooling device manufactured with the traditional method, the temperature difference between the hot end and the cold end thereof only can reach about 60 degrees. Accordingly, the effect of usage of the existing P-type semiconductor elements and N-type semiconductor elements for manufacturing a cooling device, especially a high-power LED lamp cooling device is less than desired.
SUMMARY
[0003] In order to overcome or at least ameliorate one or more of the defects in the prior art, an embodiment of the present invention seeks to provide a high-power LED lamp cooling device and a method for manufacturing the same, which is featured by a better cooling effect, higher working efficiency and lower energy consumption.
[0004] Alternatively or additionally, an embodiment of the present invention seeks to at least provide the public with a useful choice.
[0005] The present invention are implemented as follows: in the method for manufacturing a high-power LED lamp cooling device made of N-type semiconductor elements or P-type semiconductor elements, when the N-type semiconductor elements or the P-type semiconductor elements are used to manufacture the high-power LED lamp cooling device, manufacturing a semiconductor crystal bar used for manufacturing N-type semiconductor elements or P-type semiconductor elements in advance into a cone-shaped crystal bar of which one end has a large diameter and the other end has a small diameter, cutting the cone-shaped semiconductor crystal bar into slices to obtain wafers with the same thickness, the small-diameter end of the wafer being the head end the large-diameter end being the tail end, and then making a color mark on the tail end surface of each wafer; and then cutting and pelletizing the conical surface of each wafer to the same polygonal cylindrical shape, the polygonal cylindrical semiconductor is the N-type semiconductor elements or the P-type semiconductor elements with a head end and a tail end, arranging the N-type semiconductor elements and the P-type semiconductor elements in a matrix form between two beryllium-oxide ceramic chips which are provided with conductive circuits, and connecting each column of N-type semiconductor elements to the P-type semiconductor elements in series mutually, so that the head end of each column of N-type semiconductor elements in series is connected to the tail end of the P-type semiconductor elements or the tail end of each column of N-type semiconductor elements is connected to the head end of the P-type semiconductor elements.
[0006] The polygonal cylinder may be a quadrangular, or square, or regular hexagonal, or regular octagonal, or regular decagonal or regular dodecagonal cylinder.
[0007] A high-power LED lamp cooling device constructed according to the above method, includes: N-type semiconductor elements and P-type semiconductor elements arranged in a matrix form between an upper beryllium-oxide ceramic wafer and a lower beryllium-oxide ceramic wafer which are provided with conductive circuits, an end of both the N-type semiconductor and the P-type semiconductor is provided with a conductive color mark, the end with the color mark is regarded as the tail end of the N-type semiconductor element or the P-type semiconductor element, the end without the color mark is regarded as the head end of the N-type semiconductor element or the P-type semiconductor element, each column of N-type semiconductor element and each column of P-type semiconductor element are connected in series respectively through an upper conductive plate provided on the upper beryllium-oxide ceramic wafer and through a lower conductive plate provided on the lower beryllium-oxide ceramic wafer, and the head end of each column of N-type semiconductor element is connected with the tail end of each column of P-type semiconductor element or the tail end of each column of N-type semiconductor element is connected with the head end of each column of P-type semiconductor element, each column of N-type semiconductor element and each column of P-type semiconductor element are connected with a direct current power source through a conductive wire on the upper conductive plate or the lower conductive plate provided at two outmost ends of the column; wherein, a beryllium copper plate pressing block is attached on an upper surface of the upper beryllium-oxide ceramic wafer, a heat dissipating aluminum base is mounted on the beryllium copper plate pressing block, a bottom surface of the lower beryllium-oxide ceramic wafer is attached with a heat-conducting uniform temperature plate, through a graphene thermal conductive grease layer, the heat-conducting uniform temperature plate is provided with a high-power LED lamp circuit which is mounted with the LED bulb, and both ends of the heat-conducting uniform temperature plate are connected to the aluminum base with screws, respectively.
[0008] The aluminum base may be provided with a thermal pipe mounting hole for mounting a thermal conductive pipe of the heat sink.
[0009] The heat-conducting uniform temperature plate may be a printed circuit board for mounting a high power LED lamp circuit of an LED bulb.
[0010] Due to the above technical solution, based on the conventional manufacturing of N-type semiconductor element and P-type semiconductor element, the semiconductor crystal bar is made with a color mark after being cut, so that the head end and tail end of the N-type semiconductor element or the P-type semiconductor element can be distinguished in a convenient way, and the arranging orientation of the head end or tail end is in consistent with that of the crystal bar before being cut. In this way, when the semiconductor element in the present invention is used, it is easy to distinguish the tail end and the head end, thus avoiding the occurrence of disordered connection when the N-type semiconductor element is connected in the prior art due to the undistinguishable head end and tail end. When the N-type or P-type semiconductor elements in the present invention are used to manufacture a cooling device, orderly connection in a head-to-tail sequence can be achieved in a convenient way, thereby effectively improving working efficiency of each N-type or P-type semiconductor element, as well as a cooling effect of the entire cooling device. Through a test, when the high-power LED lamp cooling device manufactured according to the present invention is adopted, the temperature difference between the cold end and the hot end thereof reaches about 73°C to 78°C, when the cooling device according to the present invention is mounted to a high-power LED lamp of 200W for use, it can be ensured that the circuit board of the high-power LED lamp can be stabilized under 45°C for a long time, thus effectively improving working efficiency of the high-power LED lamp and prolonging the service life of the high-power LED lamp. Therefore, as compared with the prior art, the present invention not only has a good cooling effect, a high working efficiency and a low energy consumption, but is also capable of reducing the light failure of a high power LED lamp, and prolonging the service life of the high-power LED lamp.
[0011] In the description in this specification reference may be made to subject matter which is not within the scope of the appended claims. That subject matter should be readily identifiable by a person skilled in the art and may assist in putting into practice the invention as defined in the presently appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a structural schematic diagram of the present invention.
[0013] Reference signs: 1-Aluminum base, 2-Thermal pipe mounting hole, 3-Beryllium copper plate pressing block, 4-Upper beryllium-oxide ceramic wafer, 5-Upper conductive plate, 6-N-type semiconductor element, 7-P-type semiconductor element, 8-Lower conductive plate, 9-Lower beryllium-oxide ceramic wafer, 10-Graphene thermal conductive grease layer, 11-Heat-conducting uniform temperature plate, 12-Conductive wire, 13-Screw.
DESCRIPTION OF EMBODIMENTS
[0014] The present invention is described below in further detail, by way of non-limiting example only, with reference to accompanying drawing and the embodiments.
[0015] The embodiments are as follows: in the method for manufacturing a high-power LED lamp cooling device made of N-type semiconductor elements or P-type semiconductor elements, when the N-type semiconductor elements or the P-type semiconductor elements are used to manufacture the high-power LED lamp cooling device using a traditional process, manufacturing a semiconductor crystal bar used for manufacturing N-type semiconductor elements or P-type semiconductor elements into a cone-shaped crystal bar in advance, of which one end has a large diameter and the other end has a small diameter, cutting the cone-shaped semiconductor crystal bar into slices to obtain wafers with the same thickness, the small-diameter end of the wafer being the head end the large-diameter end being the tail end, and then making a color mark on the tail end surface of each wafer with colors made of conductive materials (for example, color materials made of conductive materials, such as copper, aluminium or silver); and then cutting and pelletizing the conical surface of each wafer to the same polygonal cylinder shape, the polygonal cylinder can be made as a quadrangular, square, regular hexagonal, regular octagonal, regular decagonal or regular dodecagonal cylinder according to needs of use, the manufactured semiconductor with polygonal cylinder shape is the N-type semiconductor elements or the P-type semiconductor elements with a head end and a tail end; arranging the N-type semiconductor elements and the P-type semiconductor elements in a traditional matrix form between two beryllium-oxide ceramic chips which are provided with conductive circuits, and connecting each column of N-type semiconductor elements to the P-type semiconductor elements in series mutually, so that the head end of each column of N-type semiconductor elements in series can be connected to the tail end of the P-type semiconductor elements or the tail end of each column of N-type semiconductor elements can be connected to the head end of the P-type semiconductor elements.
[0016] The structural schematic diagram of the high-power LED lamp cooling device constructed according to the above method is as shown in FIG. 1, and the cooling device includes: N-type semiconductor elements 6 and P-type semiconductor elements 7 arranged, in a matrix form, between an upper beryllium-oxide ceramic wafer 4 and a lower beryllium-oxide ceramic wafer 9 which are provided with conductive circuits, an end of both the N-type semiconductor 6 and the P-type semiconductor 7 is provided with a conductive color mark, the end with the color mark is regarded as the tail end of the N-type semiconductor element 6 or of the P-type semiconductor element 7, the end without the color mark is regarded as the head end of the N-type semiconductor element 6 or of the P-type semiconductor element 7, each column of N-type semiconductor element 6 and each column of P-type semiconductor element 7 are connected in series respectively through an upper conductive plate 5 provided on the upper beryllium-oxide ceramic wafer 4 and through a lower conductive plate 8 provided on the lower beryllium-oxide ceramic wafer 9, and the head end of each column of N-type semiconductor element 6 is connected with the tail end of each column of P-type semiconductor element 7 or the tail end of each column of N-type semiconductor element 6 is connected with the head end of each column of P-type semiconductor element 7, each column of N-type semiconductor element 6 and each column of P-type semiconductor element 7 are connected with the direct current power source through a conductive wire 12 on the upper conductive plate 5 or the lower conductive plate 8 provided at two outmost ends of the column (as shown in FIG. 1); during manufacturing, a beryllium copper plate pressing block 3 is attached on the upper surface of the upper beryllium-oxide ceramic wafer 4, a heat dissipating aluminum base 1 is mounted on the beryllium copper plate pressing block 3, and meanwhile, the aluminum base 1 is manufactured with a thermal pipe mounting hole 2 for mounting a thermal conductive pipe of the heat sink; the bottom surface of the lower beryllium-oxide ceramic wafer 9 is attached with a heat-conducting uniform temperature plate 11, through a graphene thermal conductive grease layer 10, the heat-conducting uniform temperature plate 11 is manufactured with a high-power LED lamp circuit which is mounted with an LED bulb according to a traditional high-power LED lamp circuit, and the heat-conducting uniform temperature plate 11 also can directly adopt the existing printed circuit board for mounting a high power LED lamp circuit of an LED bulb; and finally both ends of the heat-conducting uniform temperature plate 11 are connected to the aluminum base 1 with screws 13, respectively.
[0017] When using the high-power LED lamp cooling device according to the present invention, it is only necessary to mount the device within a high-power LED lamp housing, mount the LED bulb on the heat-conducting uniform temperature plate 11, meanwhile clamp the thermal conductive pipe of the heat sink into the thermal pipe mounting hole 2 of the aluminum base 1, and connect power lines on the conductive wire 12 and the heat-conducting unifonn temperature plate 11 respectively with the direct current power source.
[0018] The term ‘comprising’ as used in this specification and claims means ‘consisting at least in part of’. When interpreting statements in this specification and claims which include the term ‘comprising’, other features besides the features prefaced by this term in each statement can also be present. Related terms such as ‘comprise’ and ‘comprised’ are to be interpreted in similar' manner.
[0019] In this specification where reference has been made to patent specifications, other external documents, or other sources of information, this is generally for the purpose of providing a context for discussing the features of the invention. Unless specifically stated otherwise, reference to such external documents is not to be construed as an admission that such documents, or such sources of information, in any jurisdiction, are prior art, or form part of the common general knowledge in the art.

Claims (5)

  1. CLAIMS What is claimed is:
    1. A method for manufacturing a high-power LED lamp cooling device, comprising using an N-type semiconductor element and a P-type semiconductor element as a cooling component of the high-power LED lamp cooling device, and comprising: when the N-type semiconductor element and the P-type semiconductor element are used as cooling component of the high-power LED lamp cooling device, manufacturing a semiconductor crystal bar used for manufacturing the N-type semiconductor elements or the P-type semiconductor elements in advance into a cone-shaped crystal bar, of which one end has a large diameter and the other end has a small diameter, cutting the cone-shaped semiconductor crystal bar into slices to obtain wafers with the same thickness, the small-diameter end of the wafer being the head end and the large-diameter end being the tail end, and then making a color mark on the tail end surface of each wafer; and then cutting and pelletizing the conical surface of each wafer to the same polygonal cylindrical shape, the polygonal cylindrical semiconductor is the N-type semiconductor elements or the P-type semiconductor elements with a head end and a tail end, arranging the N-type semiconductor elements and the P-type semiconductor elements in a matrix form between two beryllium-oxide ceramic chips which are provided with conductive circuits, and connecting each column of N-type semiconductor elements to the P-type semiconductor elements in series mutually, so that the head end of each column of N-type semiconductor elements in series is connected to the tail end of the P-type semiconductor elements or the tail end of each column of N-type semiconductor elements is connected to the head end of the P-type semiconductor elements.
  2. 2. The method for manufacturing a high-power LED lamp cooling device according to claim 1, wherein, the polygonal cylinder is a quadrangular, or square, or regular hexagonal, or regular octagonal, or regular decagonal or regular dodecagonal cylinder.
  3. 3. A high-power LED lamp cooling device, comprising: N-type semiconductor elements and P-type semiconductor elements arranged in a matrix form between an upper beryllium-oxide ceramic wafer and a lower beryllium-oxide ceramic wafer which are provided with conductive circuits, wherein, an end of both the N-type semiconductor and the P-type semiconductor is provided with a conductive color mark, the end with the color mark is regarded as the tail end of the N-type semiconductor element or the P-type semiconductor element, the end without the color mark is regarded as the head end of the N-type semiconductor element or the P-type semiconductor element, each column of N-type semiconductor element and each column of P-type semiconductor element are connected in series respectively through an upper conductive plate provided on the upper beryllium-oxide ceramic wafer and through a lower conductive plate provided on the lower beryllium-oxide ceramic wafer, and the head end of each column of N-type semiconductor element is connected with the tail end of each column of P-type semiconductor element or the tail end of each column of N-type semiconductor element is connected with the head end of each column of P-type semiconductor element, each column of N-type semiconductor element and each column of P-type semiconductor element are connected with a direct current power source through a conductive wire on the upper conductive plate or the lower conductive plate provided at two outmost ends of the column; wherein, a beryllium copper plate pressing block is attached on an upper surface of the upper beryllium-oxide ceramic wafer, a heat dissipating aluminum base is mounted on the beryllium copper plate pressing block, a bottom surface of the lower beryllium-oxide ceramic wafer is attached with a heat-conducting uniform temperature plate, through a graphene thermal conductive grease layer, the heat-conducting uniform temperature plate is provided with a high-power LED lamp circuit which is mounted with the LED bulb, and both ends of the heat-conducting uniform temperature plate are connected to the aluminum base with screws, respectively.
  4. 4. The high-power LED lamp cooling device according to claim 3, wherein, the aluminum base is manufactured with a thermal pipe mounting hole for mounting a thermal conductive pipe of the heat sink.
  5. 5. The high-power LED lamp cooling device according to claim 3, wherein, the heat-conducting uniform temperature plate is a printed circuit board for mounting a high power LED lamp circuit of an LED bulb.
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CN201310257924.5A CN103353098B (en) 2013-06-25 2013-06-25 A kind of high-powered LED lamp cooling device and preparation method thereof
PCT/CN2014/078443 WO2014206166A1 (en) 2013-06-25 2014-05-26 High-power led lamp cooling device and manufacturing method therefor

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CN103353098A (en) 2013-10-16
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EP3015765A1 (en) 2016-05-04
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US9412925B2 (en) 2016-08-09
JP2016530674A (en) 2016-09-29
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WO2014206166A1 (en) 2014-12-31
US20160133811A1 (en) 2016-05-12

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